Bernard EZ Series Installation, Start-Up And Maintenance Instructions

INSTRUCTIONS DE MISE EN SERVICE,

STOCKAGE ET ENTRETIEN

INSTRUCTIONS FOR START-UP,

STORAGE AND MAINTENANCE

ANLEITUNG FÜR DIE INBETRIEBNAHME,

LAGERUNG UND WARTUNG

NR 1208_EZ_revJ_A/F/D

Art: 5100134

EZ

Gamme

Range

TABLE OF CONTENT

1 Safety information 3

2 Assembly 3

3 Handwheel operation and declutching 3

4

Commissioning for switch actuator 4

5 Commissioning of EZ LOGIC actuator 8

6 Torque limiter 20

7 Maintenance and storage instructions 20

Wiring diagram - EZ4 to EZ15 single-phase 57

Wiring diagram - EZ25 to EZ60 single-phase 58

Wiring diagram - Other EZ actuators 59

Examples of power supply circuits 60

Control panel design examples 61

Wiring diagram - EZ LOGIC 62

Wiring diagram - EZ6-EZ15 DC prewired 63

SOMMAIRE

1 Sécurité 21

2 Montage 21

3 Commande manuelle et debrayage 21

4 Mise en service - servomoteurs switch 22

5 Mise en service - servomoteurs EZ LOGIC 26

6 Limiteur de couple 38

7 Entretien et stockage des servomoteurs 38

Câblage des actionneurs EZ4 à EZ15 monophasé 57

Câblage des actionneurs EZ25 à EZ60 monophasé 58

Câblage des autres actionneurs EZ 59

Exemples de circuits de puissance 60

Exemples de réalisation de coffrets de commande 61

Schéma de câblage - EZ LOGIC 62

Câblage des actionneurs EZ6-EZ15 courant continu précâblé 63

INHALTSVERZEICHNIS

1 Sicherheitsinformationen 39

2 Montage 39

3 Handradbetätigung und auskuppeln 39

4 Inbetriebnahme für auf/zu antriebe 40

5 Inbetriebnahme antrieb EZ LOGIC 44

6 Drehmomentbegrenzer 56

7 Wartungsanleitung und hinweise zur lagerung 56

Antriebverdrahtung - EZ4 bis EZ15 einphasig 57

Antriebverdrahtung - EZ25 bis EZ60 einphasig 58

Antriebverdrahtung - Andere EZ antriebe 59

Beispiele für Stromversorgungskreise 60

Beispiele für Schalttafelausführungen 61

SCHALTPLAN - EZ LOGIC 62

Antriebverdrahtung - EZ6-EZ15 gleichstrom vorverkabelt 63

3

English

1 SAFETY INFORMATION

This device complies to current applicable safety standards. Installation, maintenance and use of

this actuator will have to be done by skilled and trained staff only.

Please read carefully the whole document prior to mounting and starting-up.

2 ASSEMBLY

Actuator should be secured directly to the valve using proper bolts or via a proper interface.

After assembly, the actuator can operate in any position. However, cable glands should not be

oriented upwards (loss of water tightness) and the motor will preferably not be positioned at the

bottom (potential internal condensation trap)

Note 1 : Do not handle the actuator by handwheel, it could damage the gearworm.

Note 2 : If the actuator was delivered mounted on the valve, the basic settings should have been done.

Note 3 : see §.7 for details on storage precaution prior to starting-up.

3 HANDWHEEL OPERATION AND DECLUTCHING

In general, the handwheel does not turn during electrical operation. Even if turning, the solid

handwheel does not have any protruding part and therefore does not present any risk of any kind

for the operator. Moreover, for the actuators with the highest torque, the torque limit system

brings an additional level of protection.

EZ4 to EZ15 models:

These actuators are equipped with a manually declutchable handwheel.

To operate manually the actuator, turn while pulling the handwheel

in order to mechanically engage it.

To declutch the handwheel, just push it back towards the actuator

body.

EZ100 to EZ1000 models:

These actuators are provided with an automatic declutching hand-

wheel, with motor drive priority. In order to operate manually the

actuator, turn the arrow of the handwheel clutch button in front of the

triangular sign on the housing (it might be necessary to turn the hand-

wheel by a few degrees to release the claws). When the motor starts,

it returns automatically into declutched position.

EZ60 models:

These actuators are equipped with declutchable intermediate gears. By moving the clutch lever, the

motor is physically disengaged from the gears. Once the manual handwheel operation has been

completed, do not forget to clutch the motor back. Otherwise, once started-up, it would run and heat

up until the motor thermal protection switch closes. If repeated, these conditions can generate a motor

breakdown .

4

FOR AN ACTUATOR WORKING SWITCH,

READ DIRECLY PARAGRAPH 4

FOR AN ACTUATOR WORKING WITH EZ LOGIC,

READ DIRECLY PARAGRAPH 5

4 COMMISSIONING FOR SWITCH ACTUATOR

4.1

ELECTRICAL CONNECTIONS AND PRELIMINARY TESTS

All components of the actuator are wired to a common

terminal strip. Remove the cover and pass the cables through the cable

glands (M20). Refer to the wiring diagram for details on the terminals

numbering system.

Both thermal protector and torque limit switches must be integrated into

your control system (see wiring examples) in order to prevent potential

damage to the actuator or valve.

The following points must be checked:

a) Make sure that power supply voltage is in accordance with the data engraved on the actuator

nameplate

b) Check that all cable glands are correctly tightened,

c) Move the valve manually to an half-open position,

d) Operate an electrical opening and check that the motor rotates in the right direction. Press

manually on the «OPEN» travel limit switch ; the motor should stop.

In the same way, check that the closing electrical command as well as the «CLOSED» travel

limit switch are working correctly,

e) All models except EZ4 to EZ15 : Operate an electrical opening. Press manually on the «OPEN» torque

limit switch ; the motor should stop. In the same way, operate an electrical closing check that

the «CLOSED» torque limit switch is working correctly,

If any misfunction was detected at this stage, please check the overall wiring.

For safer working conditions, we recommend that the power supply now be switched off especially

if the actuator output max. torque exceeds 300 N.m.

4.2

SETTING OF MECHANICAL STOPS AND TRAVEL LIMIT SWITCHES

Mechanical stops description and function :

These items avoid any over-travelling during handwheel operations.

The stops can be positioned either on the actuator itself or on the 1/4 Turn

worm gearbox if any.

Actuators and gears are supplied and tested for a 90° operation.

Fine adjustment of the stop screws position is possible within a limit

of ± 2° maximum.

5

English

Travel limit switches description and function:

The cams operating the limit switches are on a cylindrical block which does not require any disas-

sembly. Each cam can be set independently of the others. The white and black cams are for OPEN

and CLOSE travel limit switches. The other cams actuate additional limit switches (Example : For

signalling).

How to operate the cams:

a) Put a screwdriver in the slot of the button encircled by the same color as the cam to be set,

b) Press lightly to disengage the cam of locked position,

c) By turning the screwdriver rotate the cam to the position in which it can trip the limit switch,

d) Remove screwdriver and ensure that the button has come back to its original position, thus

locking the cam in chosen place.

Procedure of mechanical stops and travel limit switches setting:

a) Loosen stop screws by 2 turns.

b) Manually drive the valve to the closed position. If mechanical stops

are reached before the valve closing is completed, it means that the

2° maximum adjustment tolerance has been exceeded ; do not try

to go beyond this limit.

c) Set the cam of the «CLOSED» travel limit switch.

d) Turn stop screws clockwise to the mechanical contact, reloosen 1.5

turn, and secure by lock nut.

Proceed in the same way in open position.

Perform complete electrical valve opening and closing operations.

It is mandatory that the motor stops on the travel limit switch and

not on the mechanical stop.

4.3 POSITION FEEDBACK POTENTIOMETER

(EZxxxx FA XX 123 A1 only)

The potentiometer used for actuator signal feedback is driven by the travel cam block system.

0% position corresponds to a closed valve. 100% to an open valve.

Circuit board mounted version

To mount the potentiometer device on the switch plate, clip it without

the position indicator on the camblock and screw it on the support

column. Screw the position indicator back.

Setting of potentiometer zero is achieved thanks to the «0% postion»

screw.

Drive the actuator to the closed position.

Resistance value is measured between terminals 16 and 17.

Hold the pinion located just under the plate with the «0% position»

marking while driving the potentiometer screw. Adjust the potentiome-

ter so that the resistance value exceeds 0 Ohm and regularly increases

then turn backwards to reach a value as close to 0 Ohm as possible.

Drive the actuator to the open position and write down the resistance

value corresponding to the 100% position.

Come back to the closed position and check that, for the 0% position,

the resistance shows a close to zero repeatable value.

6

On support column mounted version (EZ4 to EZ15 actuactors)

To mount the potentiometer device, screw the support column on the mounting plate and engage the driving

pinion into the camblock wheel.

To adjust the potentiometer resistance value, loosen the nut with the

wrench and rotate potentiometer until the signal requested is archieved.

To set the 0%, drive the actuator to the closed position.

Resistance value is measured between terminals 16 and 17.

Rotate the potentiometer so that the resistance value exceeds 0 Ohm

and regularly increases then turn backwards to reach a value as close

to 0 Ohm as possible.

Retighten nut after setting.

Drive the actuator to the OPEN position and write down the resistance value corresponding to the

100% position. Come back to the closed position and check that, for the 0% position, the resistance

shows a close to zero repeatable value.

Signal inversion:

To inverse the signal variation direction, invert potentiometer wires on the actuator terminal board

(e.g. for a connection on 16/17/18, invert 16 and 18).

4.4 «TAM» POSITION TRANSMITTER

(EZxxxx FA XX 123 A2 only)

The TAM transmitter delivers a 4 to 20 mA signal linearly proportional

to the angular position of the valve.

Electric connections

Refer to the wiring diagram supplied with the actuator.

FIltered or stabilised power supply should be provided within the 12

to 32 VDC range. Maximum admissible ohmic load values are given in

the table :

Energy Supply

DC (VOLT)

Max. admissible

load Ohm

12 150

24 750

30 1050

7

English

Signal direction inversion

The TAM transmitter, when supplied with a standard actuator, provides a signal that rise from close

position to open position, the standard opening direction being counter-clockwise.

If an opposite signal variation is required, simply move 2 jumpers on the board near the potentiometer.

Direct signal : jumpers on 1-3 and 2-4

Reversed signal : jumpers on 1-2 and 3-4

Settings

Connect a milliampermeter at the place of burden.

- Always start by adjusting the 4mA.

- Drive actuator to the position corresponding to the 4 mA (closed

position),

- Hold the pinion located just under the plate with the «0% position»

marking while driving the potentiometer screw. Adjust the poten-

tiometer so that the output current reaches a minimum value. Turn

backwards until the current value regularly increases then turn

backwards again and stop as soon as the minimum value determined

here above has been reached. The potentiometer is then positioned

at the very beginning of its track.

- Then, use the TAM adjustment screw marked as «0/4mA» to adjust

the current to a value as close to the 4 mA as possible.

- Drive actuator to the position corresponding to the 20 mA (open position),

- Turn the screw marked «20mA» in order to read exactly 20 mA on the milliampermeter.

- Come back to the closed position and check that, for the 0% position, the signal current shows

a close to 4 mA and repeatable value.

4.5 AUXILIAIRY CONTROL SWITCHES

The OPEN and CLOSED signalling can be managed separately by two separated control switches.

These switches are actuated by brown and grey cams.

They can be connected through terminals 20 to 25 as follow :

4.6 HEATING RESISTOR

Each actuator includes a heating resistor. As soon as the actuator is installed in the ﬁeld, it is

recommanded du supply the resistor to prevent condensation.

4.7 CAUTION

Replace covers immediately after start-up and make sure that their seals are clean. Never fail

to replace the protection covers. If water ever enters, dry thoroughly before replacing covers.

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Uždara padėtis

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5 COMMISSIONING OF EZ LOGIC ACTUATOR

5.1

PRODUCT DESCRIPTION

According to the reference, the EZ LOGIC control can work with single-phase, 3-phase or 24VDC.

Moreover, EZ LOGIC features a local command, a 7-segment display giving a percentage of opening

and several LED for signaling.

EZ LOGIC control can be proposed in two versions:

ON/OFF: Only the ‘valve opened’ and ‘valve closed’ positions are managed. The electronic board

receives a command by ‘dry contacts’ or by ‘voltage’ to ‘Open’, ‘Close’ or ‘Stop’. These actuators can

be identiﬁed on the rating plate by the following code:

EZxxxx FL XX 123 A0 are equipped with ON/OFF board

They work exclusively as ON/OFF

POSITIONING: The EZ LOGIC control receives an analog input signal (4/20mA as standard, 0/20mA

or 0/10VDC are also possible) and manages the valve positioning. A position feed-back is given to

the remote command. These actuators can be identiﬁed on the rating plate by the following code:

EZxxxx KL XX 123 A0 are equipped with positioning board

They can also work as ON/OFF

5.1.1 Keyboard

1

9

10

7

6

3

5

4

2

8

Description

1.

7-segment display

(Percentage of opening, user’s indications)

2. Selection key LOCAL / REMOTE and Escape

3. CLOSING and ‘Go down’ key

4. STOP and validation key

5. OPENING and ‘Go up’ key

6. VALVE CLOSED Led (Possible customization

Green/Red), ﬂashing during closing operation)

7. VALVE OPENED Led (Possible customization Red/

Green) blinking during opening operation)

8. SETTING Led. Light is ON in setting mode.

9. ALARM Led. Light is ON in case of alarm and fault

code is displayed

10. LOCAL Led. Light is ON in local mode

Local command Inhibition

5 sec.

The keypad is protected against unexpected local command by a

local command inhibition.

This function is activated automatically after 1 minute without tou-

ching the keypad or by pressing the STOP key for 5 seconds.

When local control is locked, the display will show a key

.

To unlock, press the STOP key for 5 seconds.

9

English

5.1.2 Power board

Inputs/Outputs are connected through screwed terminals. The terminals have a clear marking

between 1 to 20 for command and signaling, and L1/L2/L3/PE for 3-phase power-supply, L/N/PE for

single-phase or + /- / PE for 24VDC.

The power-board includes an additional control-board connected to the sensors and the keypad.

5.2 WIRING

The wiring must be done according to the wiring diagram located inside the actuator.

To ensure properly the water-tightness, actuators must be equipped with M20 cable-glands (not

delivered with the actuator). A total of 3 cable entries are available.

Attention : Do not open under voltage

5.2.1 Opening of actuator

Control board

Ribbon cable

Isolated side

Remove the cover by unscrewing the 4

captive screws.

A ribbon cable coming from the key-

board is connected to the control board.

TO AVOID ANY DAMAGE, THE RIBBON

CABLE IS DESIGNED TO BE SELF-DIS-

CONNECTED WHEN THE COVER IS

REMOVED.

After wiring, it is necessary to connect

again the ribbon cable onto the control

board connector reaching the bottom

end (See picture).

Pay attention to respect the sense of

connection, the ribbon cable is not re-

versible. Do not twist the ribbon cable.

10

5.2.2 Power supply

Connect the power board according to the voltage indicated

on the rating plate.

- 3-Phase : L1/ L2 / L3 / PE

- Single-phase : L / N / PE

- 24VDC : + / - / PE

5.2.3 Remote command

The EZ LOGIC actuator’s remote control system can be operated using an external voltage supply

or dry contact command (internal 24VDC).

The input circuits are fully opto-isolated. The pulse command system requires four connecting wires

on the client terminal strip: Common, stop, open and close. If the stop push-button is not used, do

not connect the STOP wire, open (or close) switch must be maintained to operate the actuator.

Dry contact command

In case of dry contact control, a jumper must be ﬁtted across terminal 9-10.

8

9

10

11

12

13

14

OPEN

CLOSE

STOP

8

9

10

11

12

13

14

OPEN

CLOSE

GND

+24V

GND

+24V

Voltage command

Remote control can use either in AC or DC voltage.

Use common terminal 9 for low voltages from 10 to 55V.

Use common terminal 8 for voltages from 90 to 250V.

Caution: Never connect voltage sources above 55V on common terminal 9

8

9

10

11

12

13

14

OPEN

CLOSE

10 - 55V ~

STOP

8

9

10

11

12

13

14

OPEN

CLOSE

90 - 250V ~

STOP

+

-

+

L3 L2/L L1/N PE

+ - PE

Pulse remote commande

(self-holding)

Maintained remote command

(without self-holding)

To remove self holding of the board, don’t connect 14

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English

INPUT POSITION SIGNAL FOR POSITIONNER (EZxxxx KL XX 123 A0 only)

EZ LOGIC actuators with reference EZxxxx KL XX 123 A0 can perform control functions in response

to a control signal (e.g. 4 – 20 mA). No prior set-up is required as the signal is automatically adjusted

to the 0 to 100% positions.

15

16

-

+

4 - 20 mA

0 - 20 mA

0 - 10 V

Impedance of 15/16 input:

• On 0/4-20mA signal : 162 Ohms

• On 0-10VDC signal : 4052 Ohms

POSITION FEEDBACK (EZxxxx KL XX 123 A0 only)

EZ LOGIC actuators with reference EZxxxx KL XX 123 A0 can incorporate an analog position signal.

No prior set up is required as the signal is automatically adjusted to the 0 to 100% positions. The

default signal is in 4-20 mA (4 mA at 0% and 20 mA at 100%)

The external supply of the current loop can be in series (2-wire connection allowing 4/20mA signal

only) or in parallel (3-wire connection allowing 4/20 or 0/20mA)

17

18

19

20

12 - 30V

-

+

A

17

18

19

20

12 - 30V

-

+

A

To obtain a 0-10VDC position signal, set the position signal (according to chapter 5.4) into 0-20mA

and put a 500 Ohms resistor in series. The voltage has to be read on both sides of the resistor.

17

18

19

20

24 - 30V

-

+

-

+

0-10V

500

Ohms

Max total impedance of the current loop: 750 Ohms with 24VDC supply

Position signal 4/20 mA Position signal 0/20 or 4/20 mA

Position signal 0/10 VDC

12

5. 2.4 Opened/Closed signaling

EZ LOGIC board is equipped with two signaling relays for ‘opened’ and ‘closed’ positions (Latching

relays). These relays signal either the position 0% or 100% of the open valve.

5. 2.5 Alarm signaling

An ‘Alarm’ relay (monostable relay) switches off when a fault is detected. The reported faults are:

- loss of power supply

- loss of a phase (in three-phase)

- Primary fuse or control fuse out of order

- Motor thermal overload

- trigger force limiters

- Motor jammed

- Loss of input signal (with 4-20mA positioner)

- Position sensor out of order

- Torque sensor out of order

- Selector in local

To connect the relays see diagram page 57-59 according to your model.

5.3 FAST COMMISSIONING

2

1

The valve set-up is non-intrusive. After being wired, connect again the

ribbon cable (according to § 5.2.1) and shut carefully the actuator’s

cover (the seal must be well ﬁtted to avoid any leakage).

Actuators and gears are supplied and tested for a 90° operation.

Fine adjustment of the stop screws position is possible within a limit

of ± 2° maximum.

Loosen the two lock nuts (1) ﬁrst the 2 ‘stop screws’ (2) by 2 turns.

This allows increasing the of 2° the possible rotation of the output.

To enter the SETTING mode:

- If the KEY logo appears , it’s necessary to turn off the local

command inhibition by pressing OK during 5 sec

- Press Local/Remote during 3 seconds

Local light is ON

- Press simultaneously Local/remote and Stop keys during 3 sec

is displayed and the Setting light is ON

- Press OK (Stop) to enter in the valve set-up menu

is displayed

13

English

To do the set-up

- Use the local command to reach the ‘valve closed’ position. If mechanical stops are reached

before the valve closing is completed, it means that the 2° maximum adjustment tolerance has

been exceeded; do not try to go beyond this limit.

- Record the position by pressing OK

is displayed

- Turn closing stop screws clockwise to the mechanical contact, reloosen 1.5 turn, and secure by

lock nut.

- Use the local command to the ‘valve opened’ position

- Record the position by pressing OK

Actuator goes back to menu The

actuator is well set

- Turn opening stop screws clockwise to the mechanical contact, reloosen 1.5 turn, and secure by

lock nut.

- Press Esc. (Local/Remote) to return to the user’s mode in local mode

‘Setting’ light turns

off. If Err code appears, it means the setting is not recorded or the operation is less than 60°:

Start the set-up procedure from the beginning again.

- Operate the valve 2 or 3 times to check the limits and adjust the mechanical stop according to

chapter 5.2.1

- Press Local/remote to leave the ‘Local’ mode

‘Local’ light turns OFF

Actuator must stop according to the position sensor

and not on the mechanical stops.

14

5.4 CONFIGURATION BY SWITCHES

mA

V

SW500

SW400

1 2 3 4

1 2

ON

It’s possible to change some parameters by changing the

position of the zip-switches located on the control board.

To do this, it’s necessary to use a small screwdriver or a

pen.

Switches have the following names written on the board:

SW400 and SW500.

Note : Changes must be done out of voltage. The new

settings are taken into account after a power cut.

5.4.1 Motor direction of rotation

SW400

1 2 3 4

ON

1 2 3 4

ON

Clockwise

Counter

clockwise

As standard, the actuator closes clockwise (rotation viewed from the

top of the valve). To close counter-clockwise, set S1 switch in position

ON

5.4.2 Remote position signal (EZxxxx KL XX 123 A0 only)

SW400

1 2 3 4

ON

0/20 mA

mA

V

SW500

1 2

ON

SW400

1 2 3 4

ON

1 2 3 4

ON

4/20mA0/20 mA

As standard, the input position signal is 4/20mA (4=0% opening). The

position feed-back is identical. (Reminder: The position feed-back

needs external supply from 12 to 30VDC).

- It’s possible to give a 0/20mA input signal. Set S2 switch in position

OFF. The position feed-back will also become 0/20mA.

- It’s possible to give a 0/10VDC input signal. Set S2 switch in position

OFF and the two SW500 switches in position V

5.4.3 Selection of ON-OFF operation (EZxxxx KL XX 123 A0 only)

SW400

1 2 3 4

ON

1 2 3 4

ON

Proportionnal

OFF ON

As standard, the EZxxxx KL XX 123 A0 actuators operate according to

proportional input signal.

- It’s possible to work ON/OFF by setting the S3 switch in position OFF.

Once S3 is OFF, the analog input signal will become inefﬁcient. Then,

remote command will be able to work with dry contacts command or

voltage command (see chapter 5.2.3)

15

English

5.5 CONFIGURATION BY PROGRAMMING

5.5.1

Flowchart

The main menu of the ﬂowchart proposes 4 entries:

- Set Position

: Allows doing the set-up on valve

- Set Conﬁguration

: Allows doing the setting of the local command, the safety

position in case of loss of 4/20 mA signal, color of the light ‘valve opened’ and ‘valve closed’

- Read Conﬁguration

: Allows reading the conﬁguration local command, voltage,

closing direction.

- Read Error

: Allows reading the ‘alarm’ codes if present (several codes may appear

simultaneously)

OR OR

OR

See Chapter 5.3

To validate and return

to upper menu,

press Esc. (Escape)

User mode

3 sec

+

16

5.5.2 To enter the main menu

- If the KEY logo appears , it’s necessary to turn off the local

command inhibition by pressing OK during 5 sec

- Press Local/Remote during 3 seconds

Local light is ON

- Press simultaneously Local/remote and Stop keys during 3 sec

is displayed and the Setting light is ON

- Move in the main menu by using UP (Open) and DOWN keys (Close)

- To enter in a sub-menu, press OK (Stop)

5.5.3 Description of ‘set conﬁguration’ menu

(set cfg - conﬁguration by programming)

- To enter the ‘Set Conﬁguration’ menu, move in the main menu like described in chapter 5.5.2 and

press OK (Stop) when

is displayed.

- Go UP and DOWN to reach the sub-menus described below

- Press OK to enter the sub-menus

Set the local command (

)

As standard, the local command works by pulse command (

). For a maintained com-

mand, select ‘Local Hold’ (

) and validate by pressing OK (Stop)

Set the failsafe position (

)

You can set a failsafe position with a 4-20 mA signal only. Then the valve goes failsafe in case of

loss of the proportional signal.

The user can also choose ‘open’ or ‘close’.

For ‘Opened’ failsafe position, select

and conﬁrm by pressing OK

For ‘Closed’ failsafe position, select

and conﬁrm by pressing OK

For ‘stayput’ failsafe position, select

and conﬁrm by pressing OK

Set the ‘Valve opened’ and ‘Valve closed’ LED colors (

)

Default conﬁguration is the following:

• the red light indicates that the valve is closed

• the green light indicates that the valve is open

You can change the colors assignment so that the red light indicates that the valve is open.

To reverse LEDs assignment, enter in LED CONFIGURATION menu, select and conﬁrm by pressing

OK.

Then the red LED indicates ‘Open’ position and the green LED indicates ‘Closed’ position.

You can restore initial conﬁguration using the same menus.

17

English

5.5.4 Description of ‘read conﬁguration’ menu ( )

- To entrer Read Conﬁguration menu, move in the main menu like described in chapter 5.5.2 and

press OK (Stop) when

is displayed.

- Go UP and DOWN to reach the sub-menus

- Press OK to enter the sub-menus

- Read the setting of the local command.

- Read the setting of the proportional command.

If proportional command is ON, press OK to read the type of input signal.

If the selected input signal is 4/20, press OK in order to read the failsafe position.

You can return to the upper menu by pressing Esc. (Escape).

- Read the nominal voltage (Single phase or 24VDC) or (3-phase)

- Read the closing direction (Close clockwise) or (Close Counter- ClockWise)

5.5.5 Read the existing alarm codes ( )

- To enter the Read Error menu, move in the main menu like described in chapter 5.5.2 and press

OK (Stop) when

is displayed.

- Go UP and DOWN to read the codes

- If there’s no alarm, display is

Code Alarm Condition

--- No fault found

E01 Max torque reached Not available on EZ4 à EZ15

E02 Thermal overload

E03 Loss of one phase For 3-phase supply

E04 Loss of 4/20mA input signal Not applicable with 0/20mA

E05 Rotor is jammed

E06 Position sensor in fault

E07 Torque sensor in fault Not available on EZ4 to EZ15

18

5.6 TROUBLE SHOOTING

Trouble To be checked

Impossible to enter the Local

mode

Display shows KEY

Unlock the local command by pressing STOP during 5s

No possible command from

the remote

Check that ‘local’ signaling light is OFF, else press shortly LO-

CAL/REMOTE key to quit the local mode

Check that S3 switch if in OFF position

If command given by dry contacts, check the 24VDC between

terminal 10 & 11, else check F502 fuse on the power board

(Actuators working with AC) or F505 (Actuators working with

24VDC)

No possible command from

the keypad (local)

Check that ‘local’ signaling light is ON, else presss LOCAL/RE-

MOTE key during 3s to enter the local mode

No operation :

No display, no signaling, no

motor activity

Check the ribbon cable between the keypad and the control

board (check if the cable is not reversed inside the connector)

Check the power supply wiring, if there is a voltage, if this

voltage is the voltage written on the rating plate. Check if the

polarity is not reversed for DC voltage

Check fuse F501 on AC power board or F505 on DC power

board, if no fault found please contact Bernard Controls

Receiving a command, actua-

tor doesn’t operate but cor-

responding light (red or green)

is blinking

Check the motor cable

if Ok, check if the voltage is in accordance with the rating plate

Actuator operate in the

wrong direction

Check switch (S1 , SW400) deﬁning the closing direction

Actuator doesn’t operate

according to 0-20mA analog

input signal

Check if this actuator is equipped with positionner (EZxxxx KL

XX 123 A0)

Check if any fault code is displayed (E04 )

Check the good position of the conﬁguration switches (SW400

S2 = OFF, S3 = ON et SW500 S1 & S2 = mA)

Check the wiring of the 0-20mA proportionnal input signal

0-20mA

Actuator doesn’t operate ac-

cording to 0-10V analog input

signal

Check if this actuator is equipped with positionner (EZxxxx KL

XX 123 A0)

Check if any fault code is displayed

Check the good position of the conﬁguration switches (SW400

S2 = OFF, S3 = ON et SW500 S1 & S2 = V)

Check the wiring of the 0-10V proportionnal input signal

Actuator doesn’t operate

according to 4-20mA analog

input signal

Check if this actuator is equipped with positionner (EZxxxx KL

XX 123 A0)

Check if any fault code is displayed

Check the good position of the conﬁguration switches (SW400

S2 = ON, S3 = ON et SW500 S1 & S2 = mA)

Check the wiring of the 4-20mA proportionnal input signal

4-20mA

19

English

Display doesn’t work or key-

pad is inactive

Check the ribbon cable between the keypad and the control

board (check if the cable is not reversed inside the connector)

Check the fuses

Check the power supply

No position feedback

Check if this actuator is equipped with positioner

(EZxxxx KL XX 123 A0)

Check the good wiring and supply of the current loop

No remote signaling (Valve

opened, valve closed, alarm)

Check the wiring between remote and signaling relays

(terminal 1 to 7)

E01 is displayed This fault message mean the maximum torque is reached

check that the valve torque is not too high

Check that mechanical stops are not stopping the movement

before reaching ‘opened’ or ‘closed’ position on the position

sensor

E02 is displayed This fault message means there was a thermal overload of the

motor due to intensive operation.

The motor must cool down and the reset will be automatic.

If the fault code remains ON, please contact Bernard Controls

E03 is displayed

This message means there is a loss of one phase

Check the power connection and the presence of the 3 phases

and the supply voltage

E04 is displayed This message means the 4-20mA input signal has been lost

Check that the 4-20mA is active and in the 4 to 20 mA range.

E05 is displayed This fault message mean the actuator (or its motor) is jamming

Check that the torque is not too high

Check that mechanical stops are not stopping the movement

before reaching ‘opened’ or ‘closed’ position on the position

sensor

E06 is displayed

Position sensor is out of order

Check the ribbon cable between the position sensor and the

control board

E07 is displayed

Check if torque sensor is well connected to the control board

(not available on EZ4 to EZ15)

Check if the torque sensor cable is not damaged

Check also is the cable is not reversed in the connector

20

6 TORQUE LIMITER

EZ25 to EZ1000 actuators are equipped with a torque limiter.

IMPORTANT :

With EZ SWITCH, the Torque limiter give pulse contact at the maximum

possible torque.

After stopping the motor, the information is not mechanically memo-

rized. Therefore store information via an self-maintained relay (see

example of cable at the end of document).

On EZ LOGIC, the torque is measured by a strain gauge. The torque

information memorized by the control board.

7 MAINTENANCE AND STORAGE INSTRUCTIONS

Maintenance

If actuators is correctly mounted and sealed, no special maintenance is required. Check once a year

function of motor and make sure that switch compartment is condensation free. If environment is

humid, we recommend to connect the anti-condensation heater resistance, thus protecting electric

parts from alteration (On EZ LOGIC, heater resistance function is included in the power board).

Actuators are lubricated for lifetime.

Storage

The actuators includes electric equipment as well as grease lubricated gear stages. In spite of the

weatherproof enclosure, oxydising, jamming and other alterations are possible if actuator is not

correctly stored.

Actuator stored in a warehouse

a) The actuators should be stored under shelter, in a clean, dry place and protected from successive

changes in temperature. Avoid storage on the ﬂoor.

b) Supply the heating resistor in the case of presence of moisture.

c) Check that plastic plugs of the cable entries are well in place. Ensure the tightness of covers and

enclosures containing electrical components.

Actuator installed but waiting for electrical connection

If there is a long wait between the actuator mounting and electrical connection works:

a) Check the proper sealing of the cable-glands electrical boxes,

b) Cover the motor with plastic ﬁlm,

c) Supply the heating resistor in the case of presence of moisture.

Storage of actuators equipped with electronic components

Long term storage of electronic components which are not in service increases the malfunction risk. This

practice is therefore highly unadvisable.

Control after storage

a) Check visually the electrical components,,

b) Operate manually the switches to check the proper mechanical work,

c) Operate apparatus manually,

d) Carry out the commissioning of the actuator according to the instructions attached to each device

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Bernard EZ Series Installation, Start-Up And Maintenance Instructions

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